Ioannis N Parasidis Editor

Ioannis N. Parasidis received a Ph.D. in mathematical analysis from Kazakh State University in Kazakhstan in 1989. He worked in the Kazakh State University until 1994 and he is now a professor in the University of Thessaly in Greece. His research interests are extensions of operators, boundary value problems for differential, integro-differential and loaded equations, spectral and inverse problems, and difference equations.
Efthimios Providas received a Ph.D. in numerical analysis from Brunel University in UK in 1990. He is an associate professor in the University of Thessaly in Greece. His expertise includes applied mathematics, numerical analysis, finite element methods and boundary value problems for differential, integro-differential, loaded and difference equations. Themistocles M. Rassias is professor of mathematics at the National Technical University of Athens. His research interests include nonlinear analysis, global analysis, approximation theory, functional analysis, functional equations, inequalities and their applications. Professor Rassias received his PhD in mathematics from the University of California, Berkeley in 1976; his thesis advisor was Stephen Smale and his academic advisor was Shiing-Shen Chern. In addition to his extensive list of journal publications, professor Rassias has published as author or volume editor several books published with Springer. Th. M. Rassias has received several awards and is an active editorial board member of an array of journals in mathematical analysis and optimization. His publications have received a large number of citations, with h-index 47 (in 2021).